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Your account says that Seat 1 checked, then Seat 4 made the all-in move. That means it's now action to Seat 8. That being the case then I would say that he can call for all of his chips no matter who Seat 4 meant to raise.

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Kind of like the classic "I call $50 and raise you $300 more!" Errr...no you don't buddy you just called and now you do nothing more.

Doesn't really work out the way you described. You said "can call for all of his chips" you can only "call" for the ammount you are facing.

There are some rule books that have a provision for 'action not being binding if the player had a gross misunderstanding of the bet size' But typically that is used for the common scenario of a short stack all-in a verbal reraise all-in with no chip movement and then some 3rd player saying call. He was calling $40 but it turns out it was a $12,040 bet to him. This is a discrecianary ruling that I have seen made with either a complete refund or the option to leave the smaller ammount in the pot and fold for the larger bet or to call the larger bet. But in this case it is not a huge disadvantage to the player in seat 8. I think by acting hastily in this manner he has simply called and loses his right to further action until the next betting round.

My ruling: Seat 4 bets the ammount of Seat 1's stack and seat 8 calls that ammount.